Ian Holley, MD
NPI 1679093363 · Emergency Medicine Physician · Saint Louis, MO
Enrolled with Medicare as Order and Referring Only - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ian Holley, MD is a Emergency Medicine Physician provider in Saint Louis, MO (NPI 1679093363).
Provider details
- NPI number
- 1679093363
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2017016919 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-06-22
- Last updated
- 2021-05-18
- Certified
- 2021-05-18
Frequently asked questions
- What is Ian Holley's NPI number?
- Ian Holley's National Provider Identifier (NPI) is 1679093363, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ian Holley's specialty?
- Ian Holley is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ian Holley located?
- Ian Holley's practice location on file with NPPES is 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110-1003.
- What is Ian Holley's phone number?
- The practice phone number listed in the NPPES registry for Ian Holley is (314) 362-5000.
- Does Ian Holley accept Medicare?
- Ian Holley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ian Holley's NPI active?
- Yes — Ian Holley's NPI (1679093363) is active in the NPPES registry as of the last update on 2021-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.